"Why do men's shirts have buttons on the right, while women's shirts have them on the left?"
And the answer, after much research:
The reason for this is found in our country's ripe history, when slavery was legal. Women would have a hand maid (either a slave or a less prominent women)that would dress them. It is easier to put on shirts if the buttons are on the right side since most people are right handed and so for someone else to put on your shirt then it is easier if the buttons are on thier right side, your left. Having buttons on the left therefore was a sign of affluence and soon all womens' shirts had buttons on the left. Men did not have someone to dress them therefore there buttons remained on the right while the womens' migrated.